Frailty-aware surgical care: Validation of Hospital Frailty Risk Score (HFRS) in older surgical patients oleh Christine Shi Min Chau, Samuel Cheng En Ee, Xiaoting Huang, Wei Shyan Siow, Michelle Bee Hua Tan, Sarah Kher Ru Sim, Ting Yu Chang, Kah Meng Kwok, Kangqi Ng, Li Fang Yeo, Aileen Lim, Lydia Euphemia Sim, Simon Conroy, Barbara Helen Rosario